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Side-by-side financial comparison of AAR CORP (AIR) and QWEST CORP (CTBB). Click either name above to swap in a different company.

QWEST CORP is the larger business by last-quarter revenue ($1.1B vs $795.3M, roughly 1.4× AAR CORP). AAR CORP runs the higher net margin — 4.4% vs -187.5%, a 191.8% gap on every dollar of revenue. On growth, AAR CORP posted the faster year-over-year revenue change (15.9% vs -15.0%). QWEST CORP produced more free cash flow last quarter ($160.0M vs $6.2M).

AAR Corp. is an American provider of aircraft maintenance services to commercial and government customers worldwide. The company is headquartered in Wood Dale, Illinois, a Chicago suburb. The company employs about 6,000 people, operating in about 30 different countries. John Holmes is the current CEO.

Qwest Corporation, doing business as CenturyLink QC, is a Regional Bell Operating Company owned by Lumen Technologies. It was originally named Mountain States Telephone and Telegraph Company, later becoming known as Mountain Bell, then US West Communications, Inc. from 1991 to 2000. It includes the former operations of Malheur Bell, Northwestern Bell and Pacific Northwest Bell as well.

AIR vs CTBB — Head-to-Head

Bigger by revenue
CTBB
CTBB
1.4× larger
CTBB
$1.1B
$795.3M
AIR
Growing faster (revenue YoY)
AIR
AIR
+31.0% gap
AIR
15.9%
-15.0%
CTBB
Higher net margin
AIR
AIR
191.8% more per $
AIR
4.4%
-187.5%
CTBB
More free cash flow
CTBB
CTBB
$153.8M more FCF
CTBB
$160.0M
$6.2M
AIR

Income Statement — Q2 FY2026 vs Q4 FY2025

Metric
AIR
AIR
CTBB
CTBB
Revenue
$795.3M
$1.1B
Net Profit
$34.6M
$-2.1B
Gross Margin
19.7%
67.9%
Operating Margin
6.0%
-183.2%
Net Margin
4.4%
-187.5%
Revenue YoY
15.9%
-15.0%
Net Profit YoY
213.1%
-627.9%
EPS (diluted)
$0.90

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AIR
AIR
CTBB
CTBB
Q4 25
$795.3M
$1.1B
Q3 25
$739.6M
$1.1B
Q2 25
$1.1B
Q1 25
$1.2B
Q4 24
$1.3B
Q3 24
$1.3B
Q2 24
$1.3B
Q1 24
$1.3B
Net Profit
AIR
AIR
CTBB
CTBB
Q4 25
$34.6M
$-2.1B
Q3 25
$34.4M
$176.0M
Q2 25
$277.0M
Q1 25
$284.0M
Q4 24
$391.0M
Q3 24
$365.0M
Q2 24
$378.0M
Q1 24
$353.0M
Gross Margin
AIR
AIR
CTBB
CTBB
Q4 25
19.7%
67.9%
Q3 25
18.1%
65.3%
Q2 25
68.2%
Q1 25
69.3%
Q4 24
71.2%
Q3 24
69.9%
Q2 24
71.6%
Q1 24
71.9%
Operating Margin
AIR
AIR
CTBB
CTBB
Q4 25
6.0%
-183.2%
Q3 25
6.4%
22.3%
Q2 25
33.1%
Q1 25
33.7%
Q4 24
40.7%
Q3 24
38.5%
Q2 24
40.3%
Q1 24
37.6%
Net Margin
AIR
AIR
CTBB
CTBB
Q4 25
4.4%
-187.5%
Q3 25
4.7%
16.1%
Q2 25
24.3%
Q1 25
24.7%
Q4 24
30.2%
Q3 24
28.2%
Q2 24
28.7%
Q1 24
26.8%
EPS (diluted)
AIR
AIR
CTBB
CTBB
Q4 25
$0.90
Q3 25
$0.95
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AIR
AIR
CTBB
CTBB
Cash + ST InvestmentsLiquidity on hand
$75.6M
$39.0M
Total DebtLower is stronger
$952.7M
$1.7B
Stockholders' EquityBook value
$1.6B
$10.9B
Total Assets
$3.2B
$15.8B
Debt / EquityLower = less leverage
0.61×
0.15×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AIR
AIR
CTBB
CTBB
Q4 25
$75.6M
$39.0M
Q3 25
$80.0M
$36.0M
Q2 25
$25.0M
Q1 25
$40.0M
Q4 24
$26.0M
Q3 24
$22.0M
Q2 24
$18.0M
Q1 24
$14.0M
Total Debt
AIR
AIR
CTBB
CTBB
Q4 25
$952.7M
$1.7B
Q3 25
$1.0B
$1.7B
Q2 25
$1.7B
Q1 25
$1.7B
Q4 24
$1.7B
Q3 24
$1.7B
Q2 24
$1.9B
Q1 24
$1.9B
Stockholders' Equity
AIR
AIR
CTBB
CTBB
Q4 25
$1.6B
$10.9B
Q3 25
$1.2B
$13.0B
Q2 25
$12.8B
Q1 25
$12.5B
Q4 24
$12.2B
Q3 24
$11.9B
Q2 24
$11.5B
Q1 24
$11.1B
Total Assets
AIR
AIR
CTBB
CTBB
Q4 25
$3.2B
$15.8B
Q3 25
$2.9B
$17.9B
Q2 25
$17.8B
Q1 25
$17.6B
Q4 24
$17.4B
Q3 24
$17.0B
Q2 24
$16.6B
Q1 24
$16.4B
Debt / Equity
AIR
AIR
CTBB
CTBB
Q4 25
0.61×
0.15×
Q3 25
0.82×
0.13×
Q2 25
0.13×
Q1 25
0.13×
Q4 24
0.14×
Q3 24
0.14×
Q2 24
0.17×
Q1 24
0.17×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AIR
AIR
CTBB
CTBB
Operating Cash FlowLast quarter
$13.6M
$402.0M
Free Cash FlowOCF − Capex
$6.2M
$160.0M
FCF MarginFCF / Revenue
0.8%
14.5%
Capex IntensityCapex / Revenue
0.9%
22.0%
Cash ConversionOCF / Net Profit
0.39×
TTM Free Cash FlowTrailing 4 quarters
$938.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AIR
AIR
CTBB
CTBB
Q4 25
$13.6M
$402.0M
Q3 25
$-44.9M
$427.0M
Q2 25
$480.0M
Q1 25
$453.0M
Q4 24
$548.0M
Q3 24
$627.0M
Q2 24
$548.0M
Q1 24
$471.0M
Free Cash Flow
AIR
AIR
CTBB
CTBB
Q4 25
$6.2M
$160.0M
Q3 25
$-53.6M
$252.0M
Q2 25
$276.0M
Q1 25
$250.0M
Q4 24
$277.0M
Q3 24
$396.0M
Q2 24
$280.0M
Q1 24
$194.0M
FCF Margin
AIR
AIR
CTBB
CTBB
Q4 25
0.8%
14.5%
Q3 25
-7.2%
23.1%
Q2 25
24.2%
Q1 25
21.7%
Q4 24
21.4%
Q3 24
30.6%
Q2 24
21.3%
Q1 24
14.7%
Capex Intensity
AIR
AIR
CTBB
CTBB
Q4 25
0.9%
22.0%
Q3 25
1.2%
16.0%
Q2 25
17.9%
Q1 25
17.6%
Q4 24
20.9%
Q3 24
17.9%
Q2 24
20.4%
Q1 24
21.0%
Cash Conversion
AIR
AIR
CTBB
CTBB
Q4 25
0.39×
Q3 25
-1.31×
2.43×
Q2 25
1.73×
Q1 25
1.60×
Q4 24
1.40×
Q3 24
1.72×
Q2 24
1.45×
Q1 24
1.33×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AIR
AIR

Commercial Customer$268.1M34%
Repair And Engineering$244.5M31%
Integrated Solutions$175.8M22%
Government And Defense Customer$85.5M11%
Expeditionary Services$21.4M3%

CTBB
CTBB

Nonrelated Party$665.0M60%
Other$436.0M40%

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